Method of making and assembling a slider



Aug. 16, 1966 L. H. MORIN METHOD OF MAKING AND ASSEMBLING A SLIDER FiledFeb. 19, 1963 I NVENT OR.

Lou/5 H Mom/v Y 17 TTOANE Y United States Patent 3,266,135 METHOD OFMAKING AND ASSEMBLING A SLIDER Louis H. Morin, 125 Beechwood Ave.,Bronx, N.Y. Filed Feb. 19, 1963, Ser. No. 259,613 6 Claims. (Cl. 29-408)This invention relates to a method of making sliders used in conjunctionwith stringers of separable fasteners in coupling and uncoupling thescoops thereof. More particularly, the invention deals in a method ofmaking sliders of this type and kind which will permit assembly of thescoops of the stringers with the slider, thereby eliminatingconventional joining methods of assembling sliders with separablefasteners, so as to be able to permit for automation for this operation.

Still more particularly, the invention deals with a method of formingsliders of the character defined, wherein one or both walls of theslider include side flanges retaining the scoops in operative engagementwith the slider when assembled therewith in accordance with my method.

The novel features of the invention will be best understood from thefollowing description, when taken together with the accompanyingdrawing, in which certain embodiments of the invention are disclosedand, in which, the separate parts are designated by suitable referencecharacters in each of the views and, in which:

FIG. 1 is a side view of one form of slider made according to myinvention, preparatory to assemblage of the slider with scoops ofstringers and attachment of a pull therewith.

FIG. 2 is a plan view of the slider shown in FIG. 1, illustrating thecores used in formation of the slider, parts of the construction beingbroken away and in section.

FIG. 3 is a section on the line 33 of FIG. 2.

FIG. 4 is a partial section on the broken line 4-4 of FIG. 2illustrating the slider shown in FIGS. 1 and 2.

FIG. 4a is a broken section substantially on the same line showing amodified form of slider.

FIG. 5 is a diagrammatic view illustrating the method of assembling thescoops with a slider, such as shown in FIGS. 1, 2 and 4 of the drawing;and

FIG. 5a is a view, similar to FIG. 5, showing the method of assemblingscoops with a slider as shown in FIG. 4a.

Considering the slider as shown in FIGS. 1 and 2 of the drawing, theslider body consists of walls and 11 joined and spaced at the wide endof the slider in a connecting frog or web 12, generally of the contourillustrated in dotted lines in FIG. 2. The wall 10 has side flanges 13,as clearly noted in FIG. 2, and one of which is partly shown in sectionin said figure. The wall 10 also has projecting from the outer surfacethereof a yoke-shaped member or clambucket 14, in the rounded portion 15of which the pivot of a pull is adapted to be retained by bending thesides 16 inwardly in final formation of the slider. No pull is shown, asit forms no direct part of this invention. In casting the slider, thewall 10 is also preferably formed with an aperture 17 for reception of alock element commonly employed on a pull.

In casting the slider body, two cores 18 and 19 are employed, the core19 having a long tongue portion 20, having a V-recess 21 in its free endin partial formation Patented August 16, 1966 ice of the web 12;whereas,the core 18 is recessed, as at 22, to receive the tongue 20, asclearly indicated by the sectional portions of the slider illustrated inFIG. 2 of the drawing. The two cores collectively form the channel orchannels of the slider body and, considering FIG. 3 of the drawing, itwill appear that the cores 18 and 19 have surfaces 18, 19' to form thewall 11 with outwardly flared sides, as indicated at 11' in FIG. 3 ofthe drawing.

This construction provides between 23 of the flanges 13 and the innersurface 24 of the offset walls 11' a clearance space suflicient for'reception of scoops of a fastener stringer such, for example, as thescoop 25 on the stringer 26 illustrated in FIG. 5 of the drawing, inwhich figure the flare 11' of the wall 11 is indicated in dot-dashlines, preparatory to compressing 11' into its scoop retaining position,as shown in section in FIG. 5, this operation being performed by a punch27 with the slider arranged upon a suitable support or anvil 28.

Considering the foregoing, it will be understood that the core 18 has across-sectional contour, such as illustrated in FIG. 4 of the drawing,in formation of the wall 10 and the wall 11 in its flared state. In thisconnection, the broken section line 44 is to be kept in mind.

In FIG. 4a and FIG. 5a, I have shown the formation of a modified form ofslider, in which 29 is a wall, similar to the wall 10, 30 a wall,generally similar to the wall 11, with the exception that 30 includes aflanged side, as at 31, and at 32 is shown part of the connecting web.

In forming a slider such as shown in FIGS. 4a and 5a, a core, generallysimliar to the core 19, will be employed; whereas, a core, similar to18, will be modified in contour and such a core is indicated, in part,at 33 in FIG. 4a of the drawing. This core is modified 'to the extent offorming the flange 31 and it will be apparent that a portion of the core19 at the narrow end of the slider will be correspondingly fonmed. Withthis construction, the space between the inner edge 34 of the flange 31and the edge 35 on the flange of the wall 29 will provide the admissionpassag for free positioning of a scoop, such as the scoop 25' of FIG.5a, in the channels of the slider body, as diagrammatically illustrated,in part, in FIG. 5a; whereupon, a punch 27', similar to 27, inconjunction with 28', similar to 28, are utilized in compressing thewall 30 from the sectional position of FIG. 5a to the dot-dash positionshown in said figure, as and when the scoop 25 has been positioned inthe channel or channels of the slider body.

From a consideration of FIGS. 1, 3 and 4 of the drawing, it will beapparent that the flare of the wall 11 extends from sides of the web andfrom the central portion of the wall beyond the Web, as indicated at 11"in FIG. 3 of the drawing.

From the cforegoing, it will be appanent that, by initially forming theslider body with the walls in a flared or open position, the operationof assembling coupled stringers of a separable fastener with the slideris materially simplified and facilitates automation for this operationand the scoops of the stringers will be retained in proper operativeposition. As will be apparent, this would apply to sliders whereinflanges are employed on one wall only of the slider or wherein it isdesirable to use flanges on both walls thereof. Further, with thepresent method, no pressure is required to distort the connecting web orfrog of the slider body, as reforming or shaping is restricted primarilyto the flared wall of the slider body.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. The method of forming a slider body to facilitate attachment ofcoupled stringers therewith and in compressing flared wall portions ofthe slider body in retaining the scoops of stringers againstdisplacement from the slider body, which comprises casting a slider bodyhaving walls spaced and joined by a web at a wide end portion of theslider body with one wall flared with respect to the opposed Wall toform wide admission passages at sides of the slider body for receptionof scoops of separable fastener stringers, positioning the scoops of apair of stringers in and between the walls of the slider body, and thencompressing said flared wall to retain the scoops of the stringersagainst displacement firorn the slider body.

2. A method as defined in claim 1, wherein at least one wall of theslider body includes side flanges.

3. A method as defined in claim 1, wherein both walls of th slider bodyinclude side flanges.

4. A method as defined in claim 1, wherein the flare of said one wallextends from sides of said web and the central portion of said wall.

5. A method as defined in claim 4, wherein at least one of the walls ofthe slider body includes side flanges, and said passages being formedbetween the side flanges central portion of said wall.

6. The method of forming a slider body to facilitate attachment ofcoupled stringers therewith and in compressing flared wall portions ofthe slider body in retaining the scoops of stringers againstdisplacement from the slider body, which comprises [forming a sliderbody having walls spaced and joined by a web at a wide end portion ofthe slider body with one wall flared with respect to the opposed wall toform wide admission passages at sides of the slider body for receptionof scoops of separable fastener stringers, positioning the scoops of apair of stringers in and between the walls of the slider body, and thencompressing said flared Wall to retain the scoops of the stringersagainst displacement from the slider body.

References Cited by the Examiner UNITED STATES PATENTS 2,304,340 12/1942Dahlin 264-242 2,584,916 2/1952 Poux 264161 2,775,027 12/1956 Morin a29-408 2,862,274 12/1958 Morin 24205.15 2,875,491 3/1959 Morin 24-205152,879,588 3/1959 Morin 29408 JOHN F. CAMPBELL, Primary Examiner.

THOMAS H. EAGER, DONLEY J. STOCKING,

Examiners.

B. A. GELAK, Assistant Examiner.

1. THE METHOD OF FORMING A SLIDER BODY TO FACILITATE ATTACHMENT OF COUPLED STRINGERS THEREWITH AND IN COMPRESSING FLARED WALL PORTIONS OF THE SLIDER BODY IN RETAINING THE SCOOPS OF STRINGERS AGAINST DISPLACEMENT FROM THE SLIDER BODY, WHICH COMPRISES CASTING A SLIDER BODY HAVING WALLS SPACED AND JOINED BY A WEB AT A WIDE END PORTION OF THE SLIDER BODY WITH ONE WALL FLARED WITH RESPECT TO THE OPPOSED WALL TO FORM WIDE ADMISSION PASSAGES AT SIDES OF THE SLIDER BODY FOR RECEPTION OF SCOOPS OF SEPARABLE FASTENER STRINGERS, POSITIONING THE SCOOIPS OF A PAIR OF STRINGERS IN AND BETWEEN THE WALLS OF THE SLIDER BODY, AND THEN COMPRESSING SAID FLARED WALL TO RETAIN THE SCOOPS OF THE STRINGERS AGAINST DISPLACEMENT FROM THE SLIDER BODY. 